Security update for go1.26

Announcement ID:	SUSE-SU-2026:21356-1
Release Date:	2026-04-20T14:07:00Z
Rating:	important
References:	bsc#1255111 bsc#1261653 bsc#1261654 bsc#1261655 bsc#1261656 bsc#1261657 bsc#1261658 bsc#1261659 bsc#1261660 bsc#1261661 bsc#1261662
Cross-References:	CVE-2026-27140 CVE-2026-27143 CVE-2026-27144 CVE-2026-32280 CVE-2026-32281 CVE-2026-32282 CVE-2026-32283 CVE-2026-32288 CVE-2026-32289 CVE-2026-33810
CVSS scores:	CVE-2026-27140 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVE-2026-27140 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVE-2026-27140 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVE-2026-27143 ( SUSE ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVE-2026-27143 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2026-27143 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2026-27144 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVE-2026-27144 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVE-2026-27144 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVE-2026-32280 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-32280 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-32281 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-32281 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-32281 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-32282 ( SUSE ): 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N CVE-2026-32282 ( NVD ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2026-32282 ( NVD ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2026-32283 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-32283 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-32283 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-32288 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L CVE-2026-32288 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVE-2026-32288 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVE-2026-32289 ( SUSE ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N CVE-2026-32289 ( NVD ): 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVE-2026-32289 ( NVD ): 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVE-2026-33810 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVE-2026-33810 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVE-2026-33810 ( NVD ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Affected Products:	SUSE Linux Enterprise Server 16.0 SUSE Linux Enterprise Server for SAP applications 16.0

An update that solves 10 vulnerabilities and has one fix can now be installed.

Description:

This update for go1.26 fixes the following issues:

• Update to version go1.26.2 (bsc#1255111).
• CVE-2026-27140: cmd/go: trust layer bypass when using cgo and SWIG (bsc#1261653).
• CVE-2026-27143: cmd/compile: possible memory corruption after bound check elimination (bsc#1261654).
• CVE-2026-27144: cmd/compile: no-op interface conversion bypasses overlap checking (bsc#1261655).
• CVE-2026-32280: crypto/x509: unexpected work during chain building (bsc#1261656).
• CVE-2026-32281: crypto/x509: inefficient policy validation (bsc#1261657).
• CVE-2026-32282: os: Root.Chmod can follow symlinks out of the root on Linux (bsc#1261658).
• CVE-2026-32283: crypto/tls: multiple key update handshake messages can cause connection to deadlock (bsc#1261659).
• CVE-2026-32288: archive/tar: unbounded allocation when parsing old format GNU sparse map (bsc#1261660).
• CVE-2026-32289: html/template: JS template literal context incorrectly tracked (bsc#1261661).
• CVE-2026-33810: crypto/x509: excluded DNS constraints not properly applied to wildcard domains (bsc#1261662).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• SUSE Linux Enterprise Server for SAP applications 16.0
  zypper in -t patch SUSE-SLES-16.0-595=1
• SUSE Linux Enterprise Server 16.0
  zypper in -t patch SUSE-SLES-16.0-595=1

Package List:

• SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
  • go1.26-race-1.26.2-160000.1.1
  • go1.26-1.26.2-160000.1.1
  • go1.26-doc-1.26.2-160000.1.1
• SUSE Linux Enterprise Server for SAP applications 16.0 (x86_64)
  • go1.26-libstd-debuginfo-1.26.2-160000.1.1
  • go1.26-libstd-1.26.2-160000.1.1
  • go1.26-debuginfo-1.26.2-160000.1.1
• SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
  • go1.26-race-1.26.2-160000.1.1
  • go1.26-1.26.2-160000.1.1
  • go1.26-doc-1.26.2-160000.1.1
• SUSE Linux Enterprise Server 16.0 (aarch64 x86_64)
  • go1.26-libstd-debuginfo-1.26.2-160000.1.1
  • go1.26-libstd-1.26.2-160000.1.1
  • go1.26-debuginfo-1.26.2-160000.1.1

References:

• https://www.suse.com/security/cve/CVE-2026-27140.html
• https://www.suse.com/security/cve/CVE-2026-27143.html
• https://www.suse.com/security/cve/CVE-2026-27144.html
• https://www.suse.com/security/cve/CVE-2026-32280.html
• https://www.suse.com/security/cve/CVE-2026-32281.html
• https://www.suse.com/security/cve/CVE-2026-32282.html
• https://www.suse.com/security/cve/CVE-2026-32283.html
• https://www.suse.com/security/cve/CVE-2026-32288.html
• https://www.suse.com/security/cve/CVE-2026-32289.html
• https://www.suse.com/security/cve/CVE-2026-33810.html
• https://bugzilla.suse.com/show_bug.cgi?id=1255111
• https://bugzilla.suse.com/show_bug.cgi?id=1261653
• https://bugzilla.suse.com/show_bug.cgi?id=1261654
• https://bugzilla.suse.com/show_bug.cgi?id=1261655
• https://bugzilla.suse.com/show_bug.cgi?id=1261656
• https://bugzilla.suse.com/show_bug.cgi?id=1261657
• https://bugzilla.suse.com/show_bug.cgi?id=1261658
• https://bugzilla.suse.com/show_bug.cgi?id=1261659
• https://bugzilla.suse.com/show_bug.cgi?id=1261660
• https://bugzilla.suse.com/show_bug.cgi?id=1261661
• https://bugzilla.suse.com/show_bug.cgi?id=1261662